Adjustable seat, table, bed, etc
The lifting device may be used for seats, beds, tables etc. The support for the mattress (5) of a bed consists of an upper framework (2) with a large number of struts hinged together, connecting it to a lower framework (1). The lower struts (6-10) may be arranged in two pairs (6,7) and (8,10). Their...
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Format: | Patent |
Sprache: | eng ; ger |
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Zusammenfassung: | The lifting device may be used for seats, beds, tables etc. The support for the mattress (5) of a bed consists of an upper framework (2) with a large number of struts hinged together, connecting it to a lower framework (1). The lower struts (6-10) may be arranged in two pairs (6,7) and (8,10). Their upper ends may be hinged to two horizontal frame members (3,4) connected by e.g. a screw (9) under tension. There are upper struts, (19,22) sloping the other way, with their lower ends connected to the adjustable frame members and their upper ends connected to the upper framework. Tightening the screw pulls the adjustable frame members toward each other and moves the sloping struts toward the vertical position, raising the bed. |
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